LEM CKSR 50-NP KIT 3P Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.3kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Low power consumption Compact design for PCB mounting Advantages CKSR footprint compatible Very good dv/dt immunity Low foot-print Low offset drift Reference pin with two modes REF IN and REF OUT Extended measuring range for unipolar measurement. High creepage / clearance distances Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Solar Inverter Standards EN 50178: 1997 UL 508: 2004 IEC 61010-1: 2010 (safety) Application Domain Industrial Specification LEM Part Number CKSR 50-NP Sample Kit 3 P Technology Closed Loop Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 50 Amp Measurement Range +/-150 Amp Output 2.5 Vref Isolation 4.3 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 3 Datasheet Product Datasheet Application Notes LEM Applications Manual 3rd Edition Alternatives LKSR 50-NP

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LEM CKSR 25-NP KIT 3P Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.3kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Low power consumption Compact design for PCB mounting Advantages CKSR footprint compatible Very good dv/dt immunity Low foot-print Low offset drift Reference pin with two modes REF IN and REF OUT Extended measuring range for unipolar measurement. High creepage / clearance distances Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Solar Inverter Standards EN 50178: 1997 UL 508: 2004 IEC 61010-1: 2010 (safety) Application Domain Industrial Specification LEM Part Number CKSR 25-NP Sample Kit 3 P Technology Closed Loop Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 25 Amp Measurement Range +/-85Amp Output 2.5 Vref Isolation 4.3 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 3 Datasheet Product Datasheet Application Notes LEM Applications Manual 3rd Edition Alternatives LKSR 25-NP

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LEM CKSR 25-NP Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.3kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Low power consumption Compact design for PCB mounting Advantages CKSR footprint compatible Very good dv/dt immunity Low foot-print Low offset drift Reference pin with two modes REF IN and REF OUT Extended measuring range for unipolar measurement. High creepage / clearance distances Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Solar Inverter Standards EN 50178: 1997 UL 508: 2004 IEC 61010-1: 2010 (safety) Application Domain Industrial Specification LEM Part Number CKSR 25-NP Technology Closed Loop Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 25 Amp Measurement Range +/-85Amp Output 2.5 Vref Isolation 4.3 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 25 Datasheet Product Datasheet Application Notes LEM Applications Manual 3rd Edition Alternatives LKSR 25-NP

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LEM CKSR 15-NP KIT 3P Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.3kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Low power consumption Compact design for PCB mounting Advantages CKSR footprint compatible Very good dv/dt immunity Low foot-print Low offset drift Reference pin with two modes REF IN and REF OUT Extended measuring range for unipolar measurement. High creepage / clearance distances Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Solar Inverter Standards EN 50178: 1997 UL 508: 2004 IEC 61010-1: 2010 (safety) Application Domain Industrial Specification LEM Part Number CKSR 15-NP Sample Kit 3 P Technology Closed Loop Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 15 Amp Measurement Range +/- 51Amp Output 2.5 Vref Isolation 4.3 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 3 Datasheet Product Datasheet

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LEM CASR 50-NP KIT3P Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.3kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Low power consumption Compact design for PCB mounting Advantages LTSR footprint compatible Very good dv/dt immunity Very low temperature coefficient of offset Reference pin with two modes REF IN and REF OUT Extended measuring range for unipolar measurement. High creepage / clearance distances Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Solar Inverter Standards EN 50178: 1997 UL 508: 2013 IEC 61010-1(safety) Application Domain Industrial Specification LEM Part Number CASR 50-NP Sample Kit 3 P Technology Closed Loop Multi Range Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 50 Amp Measurement Range +/-150 Amp Output 2.5 Vref Isolation 4.1 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 3 Datasheet Product Datasheet Application Notes LEM Applications Manual 3rd Edition Alternatives Contact Us for Possible Replacement

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LEM CAS 50-NP KIT3P Series Closed Loop AC/DC Hall Effect Sensor Features Closed loop current transducer Voltage output 4.2kV Isolation Frequency bandwidth 300kHz Single supply + 5 V Galvanic isolation between primary and secondary Compact design for PCB mounting Advantages LTS footprint compatible Very good dv/dt immunity Extended measuring range for unipolar measurement. Reduced height Applications AC variable speed and servo motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications Standards EN 50178: 1997 UL 508: 2013 IEC 61010-1(safety) Application Domain Industrial Specification LEM Part Number CAS 15-NP Sample Kit 3 P Technology Closed Loop Multi Range Hall Effect Aperture None ROHS Yes Supply Voltage 5 VDC Load Current (RMS + DC) 50 Amp Measurement Range +/-150 Amp Output 2.5 Vref Isolation 4.2 kV Bandwidth DC-300 kHz Mounting Style PCB Mount Operating Temperature Range -40°C / 85°C Accuracy 0.8% Termination Style PCB Unit Weight 9g Factory Packaging 3 Datasheet Product Datasheet

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Kelvin Washer, Battery Terminal Washer 8mm Delivery up to 8-10 weeks if not in stock

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Sentinel 3+ Battery Sensor Gen 3+, DIN Rail Mount Compact and versatile 3 in 1 Battery sensor for monitoring of critical battery systems, included Flooded Cell, and VLRA types. The Sentinel 3+ is a state of the art, System on Chip (SoC) digital transducer designed to monitor VRLA, gel or flooded stationary battery systems. Data is transmitted over a dedicated communication bus to proprietary and non-proprietary devices Features Din Rail Mount, Compact Design LED status indicator Temperature patch for direct battery measurement Communication interface isolation 2.16 kV Fast, simple fittings , Voltage, Temperature and True AC Impedance Measurement S-Bus Output (Interface with OEM equipment) Suitable for Transformerless UPS systems (may require Common mode Isolator) Isolated plastic case recognised according to UL94-V0 Advantages Excellent sensitivity, accuracy, and repeatability High current stimulation for secure impedance measurement Improved immunity to Common Mode transients in newer UPS topologies (ie. transformerless, using fast IGBTs and/or a floating battery with respect to earth ground). Applications UPS Telecommunications Battery supplied applications Application Domains Energy & Automation Industrial. Utilities Fire & Safety system Remote monitoring LEM Part Number BM Sentinel 3+ Technology SoC 3 in 1 sensor CE Approved Yes Supply Voltage 0.9 .. 16VDC @ 30mA Voltage Measurement Range 0.9 .. 16VDC @ 30mA Temperature Measurement Range -10°C / 70°C Output S-Bus Digital protocol Isolation 2.16kV (AC, 50Hz, 1 min) S-Bus Baud Rate 9600 bps Mounting Style Din Rail Mount Operating Temperature Range -10°C / 70°C Accuracy 0.5% Termination Style 6 Pin Connector (for BM CBL POW 0.4/0.6M) Unit Weight 70g Factory Pack Qty 6   Datasheet Used to monitor and measure battery Impedance, Voltage, and Surface Temperature. Product Datasheet S-Bus Protocol Information OEM Software Tools Sentinel 3 Commander Test Program Sentinel Troubleshooting Harsh EMC Application Notes In a UPS, the current drawn by the inverter contains line frequency harmonic components (mostly 2nd, 4th and 6th). Part of this ripple current flows through the battery, to which is connected the Sentinel. As the Sentinel itself uses an excitation current for the impedance measurement, so the presence of ripple current can interfere with the measurement and thus cause errors. The table below quantifies the additional error resulting from 1A rms of ripple current, for different combinations of ripple current harmonics and bloc voltage. Table 1: Additional errors for impedance measurement due to ripple current (See datasheet) Notes: The error values are the maximum, and are normalized for 1A rms of ripple current. The error is proportional to the ripple current; for example, if the ripple current was 2A rms the error will increase by factor 2.

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LEM RS232 SBUS Converter for LEM Battery Monitoring System Features Proprietary LEM SBUS String Interface For OEM Sentinel Communication Datasheet Product Datasheet

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5.0M Battery Monitoring Data Cable Delivery up to 8-10 weeks if not in stock

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2.0M Battery Monitoring Data Cable Delivery up to 8-10 weeks if not in stock

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1.0M Battery Monitoring Data Cable Delivery up to 8-10 weeks if not in stock

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